KR100918758B1 - Progress apparatus of water treatment system used in advanced ultraviolet and oxidation, and method for progressing the same - Google Patents

Abstract

PURPOSE: A device for improving performance of a water treatment system using ultraviolet rays and ozone and a method thereof are provided to improve water efficiency of water heavy water, and rain water, etc, and to improve sterilization and purification efficiency. CONSTITUTION: A device for improving performance of a water treatment system using ultraviolet rays and ozone includes a reservoir(1), an AOP chamber(7), a circulation pipe(5), a circulation pump(5a), an ozone mixer(11), and a cooler(15). The reservoir stores raw water such as heavy water, rainwater etc. The reservoir is divided into a first reservoir(1a) and a second reservoir(1b). The AOP chamber sterilizes and purifies the raw water supplied from the reservoir. The ozone mixer is connected to the circulation pipe. The ozone mixer dissolves the ozone in the raw water. The cooler is connected to the circulation pipe.

Description

Performance Improvement Device and Method for Improving Performance of Ultraviolet and Ozone Mixed Water Treatment System

The present invention sterilizes harmful microorganisms of water, heavy water and rainwater using ultraviolet rays and ozone, and decomposes and purifies organic matters so that they can be used for multipurpose purposes. In particular, the solubility of ozone is improved by lowering the temperature of process water before treatment. The present invention relates to a device for improving the performance of an ultraviolet and ozone mixed water treatment system and a method for improving the performance thereof by introducing a new technology realization means.

In recent years, the lack of water resources in the world is facing a serious degree. Accordingly, in order to solve the water shortage in Korea, efficient management, securing and recycling of water is required. As one of the methods, various methods for efficiently purifying and recycling water have been researched and developed.

For example, a method is known in which ultraviolet rays are used to sterilize and purify microorganisms in water and to decompose organic substances that cause odors. Ultraviolet light is a light with a wavelength in the range of approximately 0.1 nm to 400 nm and has a relatively high energy. When irradiated directly to the cell membrane of a microorganism, the ultraviolet ray destroys the cell wall or cell membrane of the microorganism and destroys its DNA or interferes with its proliferation. Has the effect of sterilizing.

For example, Korean Patent Registration Publication No. 348413 (July 29, 2002) discloses an ultraviolet and ozone generating AOP chamber (Advanced Oxidation Process Chamber) and a new water treatment apparatus using the same.

The AOP chamber includes a sealed elongated cylindrical housing, a quartz tube inserted through the center along the longitudinal direction of the housing to allow water to pass therein, and a longitudinal direction of the housing near one wall of the housing. And an air inlet and an outlet for allowing air to flow in and out of the housing.

As another example, Korean Patent Publication No. 348414 (2002. 07. 29) discloses a dissolving device and a water treatment device having the dissolving device.

The dissolving member is a tube for supplying a liquid for supplying a first liquid, and a member for supplying a second material for supplying a second liquid, or gas, or a powdered solid (second material) to be dissolved in the first liquid. A second material supply member having a conduit extending at least at its distal end along the axis of the liquid supply pipe distal end, and connected to the end of the liquid supply pipe and the second material supply member and on the sidewall thereof; It comprises a first dissolution tank formed with a plurality of holes, and a second dissolution tank surrounding the first dissolution tank and having a form extending further in its length direction and having an outlet at the bottom thereof.

Although the conventional AOP chamber and the dissolver are sterilizing water using ultraviolet rays and ozone, there is a problem in that water purification efficiency is inferior.

More specifically, the conventional AOP chamber and the dissolver contact water (raw water), ultraviolet light and ozone only in a narrow range, resulting in low sterilization and purification efficiency, and in particular, the dissolution rate of ozone is low because the water and ozone contact at room temperature. As a result, since the amount of ozone in the ozone generator is increased to increase the ozone concentration, there is a problem of high cost and low economic efficiency.

For example, the solubility of ozone in water is low at room temperature and atmospheric pressure, and research results and a large number of experimental results are known that the higher the pressure of the contact system and the lower the temperature, the greater the solubility.

The present invention solves the problems of the prior art described above, and also considers the effect of temperature on the solubility of ozone, and introduces a new concept of lowering the temperature of the process water below a certain level before contacting the process water with ozone. The purpose of the present invention is to improve the dissolution rate of, and as a result, to suppress the loss of ozone to improve the economics and to improve the water purification efficiency by oxidation.

In addition, the present invention has another object to improve the water purification efficiency of water, heavy water and rainwater, and to improve the management, securing and multipurpose recycling of water resources.

In accordance with the above object, in the present invention, before the AOP chamber for sterilizing and purifying water (process water) is installed an ozone mixer for contacting the process water and ozone, the temperature of the process water flowing into the ozone mixer below a certain temperature The present invention proposes a performance improving device and a method for improving the performance of a UV and ozone mixed water treatment system, which is achieved by installing a chiller in a circulation pipe of process water.

More specifically, the apparatus for improving performance of the ultraviolet and ozone mixed water treatment system of the present invention is to install a storage tank in which process water, such as water, heavy water, or rain water, is stored and sterilize and purify process water circulated and supplied from the storage tank. Install an AOP chamber, install a circulation pipe and a circulation pump connecting the AOP chamber and the reservoir, install an ozone mixer for dissolving ozone in the process water of the circulation pipe flowing into the AOP chamber, and inflow into the ozone mixer. Characterized in that a cooler for lowering the temperature of the process water to a predetermined temperature or less in the circulating piping.

Here, the reservoir is separated into a first reservoir and a second reservoir to communicate with each other, an ozone generator for supplying ozone to the ozone mixer, a temperature sensor for measuring the temperature of the raw water contained in the reservoir, and the temperature It is configured to further include a control unit for controlling the temperature of the cooler by the signal of the sensor.

In addition, in the present invention, as a method for improving the performance of the UV and ozone mixed water treatment system, the UV and ozone mixed water treatment system to circulate the process water, such as water, heavy water or rain water stored in the reservoir to the AOP chamber for water treatment In the configuration, the first step of lowering the circulating process water to a temperature of 0 ~ 12 ℃ using a cooler; A second step of contacting and dissolving the cooled process water with ozone supplied from the ozone generator in a ozone mixer; And a third step of sterilizing and purifying the raw water in which ozone is dissolved into the AOP chamber.

Based on the above-mentioned means for solving the problem, the present invention considers the effect of the temperature of water (process water) on the solubility of ozone, and lowers the temperature of process water below a certain level before the ozone dissolution process, thereby doubling the dissolution rate of ozone. As a result, it is possible to lower the generation and injection concentration of ozone and suppress the loss of ozone, thereby improving economic efficiency.

In addition, according to the present invention, the water purification efficiency of water, heavy water and rainwater is improved, and it is repeatedly circulated to increase sterilization and purification treatment efficiency, and as a result, management, securing and multipurpose recycling of water resources can be improved. .

In addition, according to the present invention, since the sterilization effect is maximized by the improvement of the ozone dissolution rate, it is also possible to obtain the effect of preventing scale generation and decay of the circulation pipe.

EMBODIMENT OF THE INVENTION Hereinafter, preferred embodiment of this invention is described in detail based on an accompanying drawing.

Figure 1 shows the overall structure of the ultraviolet and ozone mixed water treatment system including a performance enhancing device which is a characteristic configuration of the present invention.

As can be seen through the drawings, the ultraviolet and ozone mixed water treatment system of the present invention includes a reservoir 1 for storing the raw water introduced as an apparatus for sterilizing and purifying raw water such as water, heavy water and rainwater. Is done.

The reservoir 1 is configured to be separated into a first reservoir 1a and a second reservoir 1b in order to efficiently store raw water such as water, heavy water, and rainwater introduced through a supply pipe, and a connecting passage 3 therebetween. ) So that they communicate with each other. Raw water (hereinafter referred to as “process raw water”) is introduced into the first storage tank 1a and sent to the second storage tank 1b through the connecting passage 3 and sent to the AOP chamber 7 through the circulation pipe 5 for sterilization and After the purification process is returned to the first storage tank (1a), this process is repeatedly pumped by the circulation pump (5a).

Repeatedly purified process water is supplied to the multi-purpose recycled water through the discharge pipe (9) connected to the second reservoir (1b). Recycled water can be used as water or constant water such as toilet water, landscaping water, cleaning water and cooling water.

Process water flowing into the AOP chamber 7 is passed through the ozone mixer 11 before treatment, where the contact and dissolution of the process water and ozone generated from the ozone generator 13 are made.

As described above, the solubility of ozone in water becomes larger at lower temperatures upon contact. The present invention is characterized by cooling the temperature of the process raw water supplied to the ozone mixer 11 in the range of 0 ~ 12 ℃ based on the results of these studies and a number of experiments.

To this end, the present invention is characterized in that made by installing a cooler 15 in the circulation pipe (5) connecting the ozone mixer 11 and the second reservoir (1b).

Typically, the temperature of process water is maintained at 15 ° C. for constant water, 25 ° C. for heavy water, and 20 ° C. for rain water. Experimental results of contacting the process raw water with ozone at room temperature and atmospheric pressure showed a dissolution rate of 1-6 mg / l.

On the other hand, by applying the cooler 15 according to the present invention, the temperature of the process raw water was cooled to the range of 0 ~ 12 ℃, it was tested by contact with ozone was able to obtain a dissolution rate of 6-13mg / L.

As can be seen from the above experimental results, it can be seen that the solubility is improved up to two times or more.

In the present invention, in order to operate the cooler 15 more efficiently, first, the temperature of the storage tank 1, especially the second storage tank 1b, is measured using the temperature sensor 17, The signal is sent to the control unit 19 to perform arithmetic processing, and using the information, the control unit 19 can automatically control the temperature of the cooler 15. The controller 19 maintains the temperature of the process raw water flowing into the ozone mixer 11 through the cooler 15 to a desired set value within a range of 0 to 12 ° C.

Based on the improved performance of the ultraviolet and ozone mixed water treatment system of the present invention configured as described above, the process of treating the process water to the purified water step by step.

First, process water such as water, heavy water or rainwater stored in the first reservoir 1a and the second reservoir 1b is supplied to the AOP chamber 7 through the circulation pipe 5 to be purified. Is done repeatedly.

Here, the present invention sends the process raw water sent from the second storage tank (1b) circulated in the first step to the cooler (15) to cool the temperature constantly in the range of 0 ~ 12 ℃.

In the first stage, the cooler 15 is controlled automatically and at a constant temperature by the temperature sensor 17 and the control unit 19 as described above.

In the second step, the cooled process water is in contact with the ozone supplied from the ozone generator 13, which is made in the ozone mixer 11, and the process water in which the ozone is dissolved is sent back to the AOP chamber 7.

In the third step, the process water in which ozone is dissolved is introduced into the AOP chamber 7, sterilized and purified, and then returned to the first storage tank 1a. This process may be repeatedly performed to increase water purification efficiency.

1 is a cross-sectional view showing the overall structure of the ultraviolet and ozone mixed water treatment system including the performance improving device of the present invention.

Claims (3)

Raw water, such as water, heavy water or rainwater is stored inflow, the reservoir is divided into a first reservoir and a second reservoir and configured to communicate with each other; An AOP chamber sterilizing and purifying process raw water circulated and supplied from the reservoir; A circulation pipe and a circulation pump connected to supply the process water to the AOP chamber and return to the storage tank; An ozone mixer connected to the circulation pipe flowing into the AOP chamber to inject and dissolve ozone into the process water; And a cooler connected to the circulation pipe flowing into the ozone mixer to lower the temperature of the process water to a predetermined temperature or less. According to claim 1, further comprising an ozone generator for supplying ozone to the ozone mixer, a temperature sensor for measuring the temperature of the raw water contained in the reservoir, and a control unit for controlling the temperature of the cooler by the signal of the temperature sensor Improving the performance of the ultraviolet and ozone mixed water treatment system, characterized in that made. In the ultraviolet and ozone mixed water treatment system for circulating raw water, such as water, heavy water or rainwater stored in the reservoir to the AOP chamber to be purified A first step of lowering the circulated process water to a temperature of 0 ~ 12 ℃ using a cooler; A second step of contacting and dissolving the cooled process water with ozone supplied from the ozone generator in a ozone mixer; A method for improving the performance of a mixture of ultraviolet and ozone water treatment systems, comprising a third step of sterilizing and purifying ozone-dissolved raw water into an AOP chamber.

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